Sporophytes are common in Sphagnum subnitens. The ecology of this species is unclear because of past taxonomic confusion with S. subfulvum. However, the two clearly differ in gametophyte and spore morphology (K. I. Flatberg 1985; Cao T. and D. H. Vitt 1986). The metallic sheen and strongly pointed stem leaves will distinguish this species from the somewhat similar S. capillifolium. See also discussion under 83. S. subfulvum.